<?php 
session_cache_expire(999999999);
			if(!isset($_SESSION)) 
			{ 
				session_start(); 
			}
			include '../../content-accountant/invoicetax.php';
			$tongtieninput=0;
			if(isset($_SESSION['input_invoice']) && count($_SESSION['input_invoice'])>0){
	            	for($i=0;$i<count($_SESSION['input_invoice']);$i++){
	            		$inobject= unserialize (serialize ($_SESSION['input_invoice'][$i]));
	            		$tongtieninput +=$inobject->order_total;
            		}
            		echo number_format($tongtieninput);
            }
?>
